公开(公告)号：US20180143269A1

公开(公告)日：2018-05-24

申请号：US15570104

申请日：2016-04-21

申请人： MultiDimension Technology Co., Ltd.

发明人： James Geza DEAK ,  Zhimin ZHOU

IPC分类号： G01R33/09 ,  G01R15/12 ,  G01R33/00 ,  G01R33/07

CPC分类号： G01R33/09 ,  G01R15/00 ,  G01R15/12 ,  G01R19/00 ,  G01R33/0052 ,  G01R33/075 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/73265 ,  H01L2924/00014

摘要： An integrated current sensor comprising a Z axis gradiometer and a lead frame primary coil, wherein the Z-axis gradiometer is a magnetoresistive Z-axis gradient sensor, comprising a substrate, with two elongated soft magnetic flux concentrators placed upon the substrate. The soft ferromagnetic flux concentrators are located above or below but displaced from a long-axis centerline equidistant from the magnetoresistive sensor strings, such that the combined magnetoresistive sensing unit detects the magnetic field perpendicular to the long-axis center line, and it is configured as a gradiometer sensor bridge. The lead frame serves as the primary coil, and the Z-axis gradiometer is placed above or below a cross-section of the current carrying portion of the lead frame, such that the current detection direction is parallel to the long-axis centerline. This sensor can detect currents of up to 5 to 50 A, it has low power consumption, small size, and fully integrated.

公开(公告)号：US09915689B2

公开(公告)日：2018-03-13

申请号：US14776781

申请日：2014-01-22

申请人： OMRON Corporation

发明人： Keiki Matsuura ,  Hiroshi Imai ,  Hiroyuki Tokusaki ,  Yasuhiro Kawabata ,  Goro Kawakami ,  Atsuhiro Okamura

IPC分类号： G01R1/20 ,  G01R21/00 ,  G01R15/00 ,  G01R19/00 ,  G01R15/14 ,  G01R21/06 ,  G01R1/18 ,  G01R11/04 ,  G01R22/06

CPC分类号： G01R21/00 ,  G01R1/18 ,  G01R11/04 ,  G01R15/00 ,  G01R15/14 ,  G01R19/0084 ,  G01R21/06 ,  G01R22/065

摘要： A measurement device has a sensor that generates current by electromagnetic coupling to a power line, a measurement circuit that measures one of voltage and power, the voltage and the power being obtained by the current generated in the sensor according to voltage at the power line, a conductive member electrically connected to a signal ground line of the measurement circuit, and an insulating member that brings the conductive member close to an external conductor and insulates the conductive member from the external conductor.

公开(公告)号：US09863980B2

公开(公告)日：2018-01-09

申请号：US14719698

申请日：2015-05-22

申请人： Rosemount Tank Radar AB

发明人： Hakan Nyberg

IPC分类号： G01R15/00 ,  G01R29/00 ,  G01F23/284 ,  G05F1/46 ,  H01Q1/22

CPC分类号： G01R15/00 ,  G01F23/284 ,  G01R29/00 ,  G05F1/46 ,  H01Q1/225

摘要： The present invention relates to a field device for determining a process variable and providing a measurement signal indicative of the process variable to a remote location via a two-wire current loop. The field device comprises a measurement device for determining the process variable; a current control device electrically connected in series with the measurement device and controllable by the measurement device to provide the measurement signal to the two-wire current loop; and voltage regulation circuitry electrically connected in series with the current control device and the measurement device for controlling a voltage across the current control device towards a desired voltage by varying a voltage across the voltage regulation circuitry.

公开(公告)号：US20170122985A1

公开(公告)日：2017-05-04

申请号：US15317240

申请日：2015-08-07

申请人： DENSO CORPORATION

发明人： Masayoshi UMEZAWA

IPC分类号： G01R15/14 ,  H01C13/00 ,  H01C1/144

CPC分类号： G01R15/146 ,  G01R15/00 ,  H01C1/08 ,  H01C1/144 ,  H01C7/13 ,  H01C13/00

摘要： A shunt resistor, at least a part of which has a resistive element with pre-set resistivity, is configured to bridge between two electrodes and detect a current value of a current flowing between the electrodes by detecting a voltage drop in the resistive element. The shunt resistor includes two connecting parts affixed to the electrodes via a conductive adhesive, respectively, and the connecting parts electrically connected to the affixed electrodes, a bridging part bridging between the connecting parts by being extended from one of the connecting parts to the other one of the connecting parts, and two bonding wires used to detect a voltage drop in the resistive element. The two bonding wires are extracted parallel to an extension direction of the bridging part to a same direction.

公开(公告)号：US20160238643A1

公开(公告)日：2016-08-18

申请号：US15137482

申请日：2016-04-25

申请人： DaisyRS, Inc.

发明人： Jeffrey Rapadas

IPC分类号： G01R21/14 ,  G01R15/00 ,  G01R21/10

CPC分类号： G01R21/14 ,  G01D4/002 ,  G01D4/006 ,  G01R15/00 ,  G01R21/10 ,  Y02B90/241 ,  Y02B90/243 ,  Y04S20/32 ,  Y04S20/325

摘要： A remote radio frequency (RF) power sensing unit including a first module and a second module. The first module may be configured to generate a digital output representative of a power level of a radio frequency (RF) signal. The second module may be configured to convert the digital output of the first module to a digital signal communicating the power level and transmit the digital signal communicating the power level over a wireless communication channel using a wireless protocol.

摘要翻译： 一种包括第一模块和第二模块的远程射频（RF）功率感测单元。 第一模块可以被配置为生成表示射频（RF）信号的功率电平的数字输出。 第二模块可以被配置为将第一模块的数字输出转换为传送功率电平的数字信号，并且通过无线协议传输通过无线通信信道传送功率电平的数字信号。

公开(公告)号：US09383397B1

公开(公告)日：2016-07-05

申请号：US13562049

申请日：2012-07-30

申请人： Alexander McEachern

发明人： Alexander McEachern

IPC分类号： G01R15/18 ,  G01R31/36 ,  G01R31/00 ,  G01R15/00

CPC分类号： G01R31/00 ,  G01R15/00 ,  G01R19/2513 ,  G01R35/005 ,  Y02E60/728 ,  Y04S10/265

摘要： A system and method are provided for measuring a parameter of an alternating current power grid relative to a calibrated fourth signal. The method includes receiving a first signal at an antenna and transmitting it to a signal receiver. A second signal is generated at the signal receiver. A third signal is generated based on the second signal and electrically isolated from the second signal. The third signal is transmitted in the cable toward the measuring device. A fourth signal is generated based on the third signal and electrically isolated from the third signal. The fourth signal, which is calibrated by subtracting a delay constant from the generated fourth signal, is transmitted to the measuring device. The delay constant approximates the delay between receipt of the first signal at the antenna and receipt of the fourth signal at the measuring device.

摘要翻译： 提供了一种系统和方法，用于相对于经校准的第四信号测量交流电网的参数。 该方法包括在天线处接收第一信号并将其发送到信号接收机。 在信号接收器处产生第二信号。 基于第二信号产生第三信号并与第二信号电隔离。 第三个信号在电缆中传送到测量装置。 基于第三信号产生第四信号并与第三信号电隔离。 通过从产生的第四信号减去延迟常数来校准的第四信号被发送到测量装置。 延迟常数近似于天线处的第一信号的接收和测量装置处的第四信号的接收之间的延迟。

公开(公告)号：US20160018448A1

公开(公告)日：2016-01-21

申请号：US14776781

申请日：2014-01-22

申请人： OMRON CORPORATION

发明人： Keiki Matsuura ,  Hiroshi Imai ,  Hiroyuki Tokusaki ,  Yasuhiro Kawabata ,  Goro Kawakami ,  Atsuhiro Okamura

IPC分类号： G01R21/00 ,  G01R15/00 ,  G01R19/00

CPC分类号： G01R21/00 ,  G01R1/18 ,  G01R11/04 ,  G01R15/00 ,  G01R15/14 ,  G01R19/0084 ,  G01R21/06 ,  G01R22/065

摘要： A measurement device has a sensor that generates current by electromagnetic coupling to a power line, a measurement circuit that measures one of voltage and power, the voltage and the power being obtained by the current generated in the sensor according to voltage at the power line, a conductive member electrically connected to a signal ground line of the measurement circuit, and an insulating member that brings the conductive member close to an external conductor and to insulates the conductive member from the external conductor.

摘要翻译： 测量装置具有通过与电力线的电磁耦合来产生电流的传感器，测量电压和功率之一的测量电路，根据电力线上的电压在传感器中产生的电流获得的电压和功率， 电连接到测量电路的信号接地线的导电部件，以及将导电部件靠近外部导体并使导电部件与外部导体绝缘的绝缘部件。

公开(公告)号：US20150185251A1

公开(公告)日：2015-07-02

申请号：US14144340

申请日：2013-12-30

申请人： Fluke Corporation

发明人： Paul Herman Heydron ,  Jeetendra Patel ,  David Lawrence Epperson

IPC分类号： G01R1/067 ,  G01R31/28 ,  G01R15/12 ,  H04B7/26 ,  G01R1/02

CPC分类号： G01R1/06788 ,  G01R1/025 ,  G01R15/00 ,  G01R15/12 ,  G01R31/28 ,  H04B7/26

摘要： An installation test system has a control device and one or more hand-held test devices. The control device and the one or more hand-held devices are in wireless communication via respective communication systems. The control device performs typical pre-power tests including insulation testing and ground testing. There is at least one hand-held device dedicated to testing for residual current in circuit breakers and another hand-held device dedicated to testing for loop impedance. The control device records all test data and stores data in storage.

摘要翻译： 安装测试系统具有控制装置和一个或多个手持式测试装置。 控制装置和一个或多个手持装置经由各个通信系统进行无线通信。 控制装置执行典型的预功率测试，包括绝缘测试和地面测试。 至少有一个专用于测试断路器中剩余电流的手持设备和专用于测试回路阻抗的另一个手持设备。 控制设备记录所有测试数据并将数据存储在存储器中。

公开(公告)号：US20140107979A1

公开(公告)日：2014-04-17

申请号：US14055692

申请日：2013-10-16

申请人： NEW YORK UNIVERSITY

发明人： Rodolfo Llinas ,  Mikhail N. Ustinin

IPC分类号： G01R15/00 ,  G06F17/14

CPC分类号： G01R15/00 ,  A61B5/04008 ,  A61B5/7257 ,  G06F17/14 ,  G06K9/00543

摘要： Methods, systems, and apparatuses, including computer programs encoded on computer readable media, for registering a multichannel time series from data collected from a plurality of channels. Each channel corresponds to one of one or more sensors. A precise Fourier transform of the data from all channels is done to transform the data in a frequency domain. Frequencies from the frequency domain are selected. The selected frequencies from all channels are inverse Fourier transformed. A restored time is selected, and activity for the selected frequencies at the restored time is localized. Coherence for the selected frequencies is estimated and coherent components are extracted. Partial spectrum is assembled comprising frequencies with similar patterns of the coherent components. Inverse transform of the partial spectrum is used to reconstruct a time series for functional entities producing the similar patterns of the coherent components.

摘要翻译： 方法，系统和装置，包括在计算机可读介质上编码的计算机程序，用于从从多个通道收集的数据登记多通道时间序列。 每个通道对应于一个或多个传感器中的一个。 完成来自所有通道的数据的精确傅里叶变换，以在频域中变换数据。 选择频域的频率。 来自所有通道的所选频率是经傅立叶逆变换的。 选择恢复的时间，并且在恢复的时间对所选频率的活动进行本地化。 估计所选频率的一致性并提取相干分量。 部分频谱被组合，其包括具有相似模式的相干分量的频率。 部分光谱的逆变换用于重建产生相干分量的相似图案的功能实体的时间序列。

公开(公告)号：US20130247678A1

公开(公告)日：2013-09-26

申请号：US13834283

申请日：2013-03-15

申请人： CALIFORNIA INSTITUTE OF TECHNOLOGY

发明人： Harish Manohara ,  Linda Y. Del Castillo ,  Mohammed M. Mojarradi

IPC分类号： G01L9/12 ,  G01L9/00 ,  G01K1/00 ,  G01R15/00

CPC分类号： G01L9/12 ,  G01K1/00 ,  G01K1/14 ,  G01L5/165 ,  G01L9/00 ,  G01L9/0002 ,  G01P9/02 ,  G01R15/00

摘要： Systems and methods in accordance with embodiments of the invention implement multi-directional environmental sensors. In one embodiment, a multi-directional environmental sensor includes: an inner conductive element that is substantially symmetrical about three orthogonal planes; an outer conductive element that is substantially symmetrical about three orthogonal planes; and a device that measures the electrical characteristics of the multi-directional environmental sensor, the device having a first terminal and a second terminal; where the inner conductive element is substantially enclosed within the outer conductive element; where the inner conductive element is electrically coupled to the first terminal of the device; and where the outer conductive element is electrically coupled to the second terminal of the device.

摘要翻译： 根据本发明的实施例的系统和方法实现多方向环境传感器。 在一个实施例中，多方向环境传感器包括：内部导电元件，其基本上对称于三个正交平面; 基本上对称关于三个正交平面的外部导电元件; 以及测量所述多方向环境传感器的电特性的装置，所述装置具有第一端子和第二端子; 其中所述内部导电元件基本上封闭在所述外部导电元件内; 其中所述内部导电元件电耦合到所述装置的第一端子; 并且其中外部导电元件电耦合到该器件的第二端子。